package com.structsoft.struts.taglib.html;


import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.struts.taglib.BaseHandlerTag;
import org.apache.struts.taglib.Constants;
import org.apache.struts.upload.FormFile;
import org.apache.struts.util.BeanUtils;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.PropertyUtils;
import org.apache.struts.util.RequestUtils;
import org.apache.struts.util.ResponseUtils;


/**
 * Tag for input fields of type "checkbox".
 *
 * @author Craig R. McClanahan
 * @version $Revision: 1.9 $ $Date: 2000/08/14 04:42:50 $
 */

public class GridCheckboxTag extends BaseHandlerTag
{


    /**
     * Construct a new instance of this tag.
     */
    public GridCheckboxTag()
    {
    	super();
    }

    protected String index = null;

    public String getIndex()
    {
        return index;
    }

    public void setIndex(String index)
    {
        this.index = index;
    }

    public void setIndex(int index)
    {
        this.index = String.valueOf(index);
    }




    // ----------------------------------------------------- Instance Variables


    /**
     * The message resources for this package.
     */
    protected static MessageResources messages =
	MessageResources.getMessageResources
	("org.apache.struts.taglib.LocalStrings");


    /**
     * The name of the bean containing our underlying property.
     */
    protected String name = Constants.BEAN_KEY;

    public String getName() {
	return (this.name);
    }

    public void setName(String name) {
	this.name = name;
    }


    /**
     * The property name for this field.
     */
    protected String property = null;


    /**
     * The server value for this option.
     */
    protected String value = null;


    // ------------------------------------------------------------- Properties


    /**
     * Return the property name.
     */
    public String getProperty() {

	return (this.property);

    }


    /**
     * Set the property name.
     *
     * @param property The new property name
     */
    public void setProperty(String property) {

	this.property = property;

    }


    /**
     * Return the server value.
     */
    public String getValue() {

	return (this.value);

    }


    /**
     * Set the server value.
     *
     * @param value The new server value
     */
    public void setValue(String value) {

	this.value = value;

    }


    // --------------------------------------------------------- Public Methods


    /**
     * Generate the required input tag.
     *
     * @exception JspException if a JSP exception has occurred
     */
    public int doStartTag() throws JspException {

	// Create an appropriate "input" element based on our parameters
	StringBuffer results = new StringBuffer();
	
	results.append("<input type=\"checkbox\" name=\"");

	if (index != null)
	{
        results.append(getName());
	    results.append("[");
	    results.append(index);
	    results.append("].");
	}
	
    results.append(property);
	
	results.append("\"");
	if (accessKey != null) {
	    results.append(" accesskey=\"");
	    results.append(accessKey);
	    results.append("\"");
	}
	if (tabIndex != null) {
	    results.append(" tabindex=\"");
	    results.append(tabIndex);
	    results.append("\"");
	}

	/*
	String value = this.value;
	if (value == null) {
	    Object bean = pageContext.findAttribute(name);
	    if (bean == null)
		throw new JspException
		    (messages.getMessage("getter.bean", name));
	    try {
		value = BeanUtils.getScalarProperty(bean, property);
		if (value == null)
		    value = "";
	    } catch (IllegalAccessException e) {
		throw new JspException
		    (messages.getMessage("getter.access", property, name));
	    } catch (InvocationTargetException e) {
		Throwable t = e.getTargetException();
		throw new JspException
		    (messages.getMessage("getter.result",
					 property, t.toString()));
	    } catch (NoSuchMethodException e) {
		throw new JspException
		    (messages.getMessage("getter.method", property, name));
	    }
	}
	*/
	
	results.append(" value=\"");
	if (null == value)
	{
	    value = "true";
	}
	results.append(BeanUtils.filter(value));
	results.append("\"");

    Object dataValue = RequestUtils.lookup(pageContext, name, property, null);
    if (null != dataValue)
    {
	    if (((String)dataValue).equalsIgnoreCase(value))
	        results.append(" checked");
	}

	results.append(prepareEventHandlers());
	results.append(prepareStyles());
	results.append(">");

	// Print this field to our output writer
	JspWriter writer = pageContext.getOut();
	try {
	    writer.print(results.toString());
	} catch (IOException e) {
	    throw new JspException
		(messages.getMessage("common.io", e.toString()));
	}

	// Continue processing this page
	return (EVAL_BODY_TAG);

    }



    /**
     * Optionally render the associated label from the body content.
     *
     * @exception JspException if a JSP exception has occurred
     */
    public int doEndTag() throws JspException {

	if (bodyContent == null)
	    return (EVAL_PAGE);

	JspWriter writer = pageContext.getOut();
	try {
	    writer.println(bodyContent.getString().trim());
	} catch (IOException e) {
	    throw new JspException
		(messages.getMessage("common.io", e.toString()));
	}

	// Continue evaluating this page
	return (EVAL_PAGE);

    }


    /**
     * Release any acquired resources.
     */
    public void release() {

	super.release();
	name = Constants.BEAN_KEY;
	property = null;
	value = null;

    }


}